1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (c) 2017 Google, Inc
6 * Pavel Herrmann <morpheus.ibis@gmail.com>
7 * Marek Vasut <marex@denx.de>
18 * devfdt_get_addr() - Get the reg property of a device
20 * @dev: Pointer to a device
24 fdt_addr_t devfdt_get_addr(const struct udevice *dev);
27 * devfdt_get_addr_ptr() - Return pointer to the address of the reg property
30 * @dev: Pointer to a device
32 * Return: Pointer to addr, or NULL if there is no such property
34 void *devfdt_get_addr_ptr(const struct udevice *dev);
37 * devfdt_remap_addr() - Return pointer to the memory-mapped I/O address
38 * of the reg property of a device
40 * @dev: Pointer to a device
42 * Return: Pointer to addr, or NULL if there is no such property
44 void *devfdt_remap_addr(const struct udevice *dev);
47 * devfdt_remap_addr_index() - Return indexed pointer to the memory-mapped
48 * I/O address of the reg property of a device
49 * @index: the 'reg' property can hold a list of <addr, size> pairs
50 * and @index is used to select which one is required
52 * @dev: Pointer to a device
54 * Return: Pointer to addr, or NULL if there is no such property
56 void *devfdt_remap_addr_index(const struct udevice *dev, int index);
59 * devfdt_remap_addr_name() - Get the reg property of a device, indexed by
60 * name, as a memory-mapped I/O pointer
61 * @name: the 'reg' property can hold a list of <addr, size> pairs, with the
62 * 'reg-names' property providing named-based identification. @index
63 * indicates the value to search for in 'reg-names'.
65 * @dev: Pointer to a device
67 * Return: Pointer to addr, or NULL if there is no such property
69 void *devfdt_remap_addr_name(const struct udevice *dev, const char *name);
72 * devfdt_map_physmem() - Read device address from reg property of the
73 * device node and map the address into CPU address
76 * @dev: Pointer to device
77 * @size: size of the memory to map
79 * Return: mapped address, or NULL if the device does not have reg property.
81 void *devfdt_map_physmem(const struct udevice *dev, unsigned long size);
84 * devfdt_get_addr_index() - Get the indexed reg property of a device
86 * @dev: Pointer to a device
87 * @index: the 'reg' property can hold a list of <addr, size> pairs
88 * and @index is used to select which one is required
92 fdt_addr_t devfdt_get_addr_index(const struct udevice *dev, int index);
95 * devfdt_get_addr_index_ptr() - Return indexed pointer to the address of the
96 * reg property of a device
98 * @dev: Pointer to a device
99 * @index: the 'reg' property can hold a list of <addr, size> pairs
100 * and @index is used to select which one is required
102 * Return: Pointer to addr, or NULL if there is no such property
104 void *devfdt_get_addr_index_ptr(const struct udevice *dev, int index);
107 * devfdt_get_addr_size_index() - Get the indexed reg property of a device
109 * Returns the address and size specified in the 'reg' property of a device.
111 * @dev: Pointer to a device
112 * @index: the 'reg' property can hold a list of <addr, size> pairs
113 * and @index is used to select which one is required
114 * @size: Pointer to size varible - this function returns the size
115 * specified in the 'reg' property here
119 fdt_addr_t devfdt_get_addr_size_index(const struct udevice *dev, int index,
123 * devfdt_get_addr_name() - Get the reg property of a device, indexed by name
125 * @dev: Pointer to a device
126 * @name: the 'reg' property can hold a list of <addr, size> pairs, with the
127 * 'reg-names' property providing named-based identification. @index
128 * indicates the value to search for in 'reg-names'.
132 fdt_addr_t devfdt_get_addr_name(const struct udevice *dev, const char *name);
135 * devfdt_get_addr_size_name() - Get the reg property and its size for a device,
138 * Returns the address and size specified in the 'reg' property of a device.
140 * @dev: Pointer to a device
141 * @name: the 'reg' property can hold a list of <addr, size> pairs, with the
142 * 'reg-names' property providing named-based identification. @index
143 * indicates the value to search for in 'reg-names'.
144 * @size: Pointer to size variable - this function returns the size
145 * specified in the 'reg' property here
149 fdt_addr_t devfdt_get_addr_size_name(const struct udevice *dev,
150 const char *name, fdt_size_t *size);
153 * devfdt_get_addr_pci() - Read an address and handle PCI address translation
155 * @dev: Device to read from
156 * Return: address or FDT_ADDR_T_NONE if not found
158 fdt_addr_t devfdt_get_addr_pci(const struct udevice *dev);